Federal Register / Vol. 86, No. 136 / Tuesday, July 20, 2021 / Rules and Regulations 38225 

This regulation is within the scope of 

that authority because it addresses an 

unsafe condition that is likely to exist or 

develop on products identified in this 

rulemaking action. 

Regulatory Findings 

This AD will not have federalism 

implications under Executive Order 

13132. This AD will not have a 

substantial direct effect on the States, on 

the relationship between the national 

government and the States, or on the 

distribution of power and 

responsibilities among the various 

levels of government. 

For the reasons discussed above, I 

certify that this AD: 

(1) Is not a ‘‘significant regulatory 

action’’ under Executive Order 12866, 

(2) Will not affect intrastate aviation 

in Alaska, and 

(3) Will not have a significant 

economic impact, positive or negative, 

on a substantial number of small entities 

under the criteria of the Regulatory 

Flexibility Act. 

List of Subjects in 14 CFR Part 39 

Air transportation, Aircraft, Aviation 

safety, Incorporation by reference, 

Safety. 

Adoption of the Amendment 

Accordingly, under the authority 

delegated to me by the Administrator, 

the FAA amends 14 CFR part 39 as 

follows: 

PART 39—AIRWORTHINESS 

DIRECTIVES 

■ 1. The authority citation for part 39 

continues to read as follows: 

Authority: 49 U.S.C. 106(g), 40113, 44701. 

§ 39.13 [Amended] 

■ 2. The FAA amends § 39.13 by adding 

the following new airworthiness 

directive: 

2021–13–20 Airbus Canada Limited 

Partnership (Type Certificate Previously 

Held by C Series Aircraft Limited 

Partnership (CSALP); Bombardier, Inc.): 

Amendment 39–21625; Docket No. 

FAA–2021–0031; Project Identifier 

MCAI–2020–01420–T. 

(a) Effective Date 

This airworthiness directive (AD) is 

effective August 24, 2021. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to Airbus Canada Limited 

Partnership (type certificate previously held 

by C Series Aircraft Limited Partnership 

(CSALP); Bombardier, Inc.) Model BD–500– 

1A10 and BD–500–1A11 airplanes, 

certificated in any category, as identified in 

Transport Canada Civil Aviation (TCCA) AD 

CF–2020–42, issued October 16, 2020 (TCCA 

AD CF–2020–42). 

(d) Subject 

Air Transport Association (ATA) of 

America Code 53, Fuselage. 

(e) Reason 

This AD was prompted by reports of 

corrosion on the waste box, waste access 

doubler, and waste service door of the rear 

fuselage due to contamination from waste 

valve leakage. The FAA is issuing this AD to 

address this corrosion, which could lead to 

cracking or holes in the waste box or airplane 

skin, and consequent cabin pressure leakage 

and catastrophic structural damage of the 

airplane. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Requirements 

Except as specified in paragraph (h) of this 

AD: Comply with all required actions and 

compliance times specified in, and in 

accordance with, TCCA AD CF–2020–42. 

(h) Exception to TCCA AD CF–2020–42 

Where TCCA AD CF–2020–42 specifies a 

compliance time of ‘‘Within 14,200 flight 

cycles or 56 months from the aeroplane date 

of manufacture, as identified on the 

identification plate of the aeroplane’’ or 

‘‘Within 9,900 flight cycles or 56 months 

from the aeroplane date of manufacture, as 

identified on the identification plate of the 

aeroplane,’’ depending on airplane 

configuration, to accomplish all applicable 

actions, this AD requires that corrosion repair 

be done before further flight after detection 

of corrosion, as identified in the applicable 

service information specified in TCCA AD 

CF–2020–42. 

(i) Other FAA AD Provisions 

The following provisions also apply to this 

AD: 

(1) Alternative Methods of Compliance 

(AMOCs): The Manager, New York ACO 

Branch, FAA, has the authority to approve 

AMOCs for this AD, if requested using the 

procedures found in 14 CFR 39.19. In 

accordance with 14 CFR 39.19, send your 

request to your principal inspector or local 

Flight Standards District Office, as 

appropriate. If sending information directly 

to the manager of the certification office, 

send it to ATTN: Program Manager, 

Continuing Operational Safety, FAA, New 

York ACO Branch, 1600 Stewart Avenue, 

Suite 410, Westbury, NY 11590; telephone 

516–228–7300; fax 516–794–5531. Before 

using any approved AMOC, notify your 

appropriate principal inspector, or lacking a 

principal inspector, the manager of the local 

flight standards district office/certificate 

holding district office. 

(2) Contacting the Manufacturer: For any 

requirement in this AD to obtain instructions 

from a manufacturer, the instructions must 

be accomplished using a method approved 

by the Manager, New York ACO Branch, 

FAA; or TCCA; or Airbus Canada’s TCCA 

Design Approval Organization (DAO). If 

approved by the DAO, the approval must 

include the DAO-authorized signature. 

(j) Related Information 

For more information about this AD, 

contact Siddeeq Bacchus, Aerospace 

Engineer, Mechanical Systems and 

Administrative Services Section, FAA, New 

York ACO Branch, 1600 Stewart Avenue, 

Suite 410, Westbury, NY 11590; telephone 

516–228–7362; fax 516–794–5531; email 

9-avs-nyaco-cos@faa.gov. 

(k) Material Incorporated by Reference 

(1) The Director of the Federal Register 

approved the incorporation by reference 

(IBR) of the service information listed in this 

paragraph under 5 U.S.C. 552(a) and 1 CFR 

part 51. 

(2) You must use this service information 

as applicable to do the actions required by 

this AD, unless this AD specifies otherwise. 

(i) Transport Canada Civil Aviation (TCCA) 

AD CF–2020–42, issued October 16, 2020. 

(ii) [Reserved] 

(3) For TCCA AD CF–2020–42, contact 

TCCA, Transport Canada National Aircraft 

Certification, 159 Cleopatra Drive, Nepean, 

Ontario K1A 0N5, Canada; telephone 888– 

663–3639; email AD-CN@tc.gc.ca; internet 

https://tc.canada.ca/en/aviation. 

(4) You may view this material at the FAA, 

Airworthiness Products Section, Operational 

Safety Branch, 2200 South 216th St., Des 

Moines, WA. For information on the 

availability of this material at the FAA, call 

206–231–3195. This material may be found 

in the AD docket on the internet at https:// 

www.regulations.gov by searching for and 

locating Docket No. FAA–2021–0031. 

(5) You may view this material that is 

incorporated by reference at the National 

Archives and Records Administration 

(NARA). For information on the availability 

of this material at NARA, email fedreg.legal@

nara.gov, or go to: https://www.archives.gov/ 

federal-register/cfr/ibr-locations.html. 

Issued on June 18, 2021. 

Lance T. Gant, 

Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2021–15346 Filed 7–19–21; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2021–0272; Project 

Identifier MCAI–2020–01485–T; Amendment 

39–21628; AD 2021–14–01] 

RIN 2120–AA64 

Airworthiness Directives; Bombardier, 

Inc., Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), Department of 

Transportation (DOT). 


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38226 Federal Register / Vol. 86, No. 136 / Tuesday, July 20, 2021 / Rules and Regulations 

ACTION: Final rule. 

SUMMARY: The FAA is adopting a new 

airworthiness directive (AD) for certain 

Bombardier, Inc., Model BD–100–1A10 

airplanes. This AD was prompted by a 

report that certain airplanes have 

navigation units with outdated magnetic 

variation (MagVar) tables. This AD 

requires revising the existing airplane 

flight manual (AFM) and applicable 

corresponding operational procedures to 

update the flight management system 

(FMS) limitations. The FAA is issuing 

this AD to address the unsafe condition 

on these products. 

DATES: This AD is effective August 24, 

2021. 

The Director of the Federal Register 

approved the incorporation by reference 

of certain publications listed in this AD 

as of August 24, 2021. 

ADDRESSES: For service information 

identified in this final rule, contact 

Bombardier, Inc., 200 Coˆte-Vertu Road 

West, Dorval, Que ́bec H4S 2A3, Canada; 

North America toll-free telephone 

1–866–538–1247 or direct-dial 

telephone 1–514–855–2999; email 

ac.yul@aero.bombardier.com; internet 

https://www.bombardier.com. You may 

view this service information at the 

FAA, Airworthiness Products Section, 

Operational Safety Branch, 2200 South 

216th St., Des Moines, WA. For 

information on the availability of this 

material at the FAA, call 206–231–3195. 

It is also available on the internet at 

https://www.regulations.gov by 

searching for and locating Docket No. 

FAA–2021–0272. 

Examining the AD Docket 

You may examine the AD docket on 

the internet at https://

www.regulations.gov by searching for 

and locating Docket No. FAA–2021– 

0272; or in person at Docket Operations 

between 9 a.m. and 5 p.m., Monday 

through Friday, except Federal holidays. 

The AD docket contains this final rule, 

any comments received, and other 

information. The address for Docket 

Operations is U.S. Department of 

Transportation, Docket Operations, 

M–30, West Building Ground Floor, 

Room W12–140, 1200 New Jersey 

Avenue SE, Washington, DC 20590. 

FOR FURTHER INFORMATION CONTACT: 

Thomas Niczky, Aerospace Engineer, 

Avionics and Electrical Systems 

Section, FAA, New York ACO Branch, 

1600 Stewart Avenue, Suite 410, 

Westbury, NY 11590; telephone 516– 

228–7347; fax 516–794–5531; email 9- 

avs-nyaco-cos@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Background 

Transport Canada Civil Aviation 

(TCCA), which is the aviation authority 

for Canada, has issued TCCA AD CF– 

2020–33, dated September 29, 2020 

(also referred to as the Mandatory 

Continuing Airworthiness Information, 

or the MCAI), to correct an unsafe 

condition for certain Bombardier, Inc., 

Model BD–100–1A10 airplanes. You 

may examine the MCAI in the AD 

docket on the internet at https://

www.regulations.gov by searching for 

and locating Docket No. FAA–2021– 

0272. 

The FAA issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 by adding an AD that would 

apply to certain Bombardier, Inc., Model 

BD–100–1A10 airplanes. The NPRM 

published in the Federal Register on 

April 12, 2021 (86 FR 18921). The 

NPRM was prompted by a report that 

certain airplanes have navigation units 

with outdated MagVar tables. The 

NPRM proposed to require revising the 

existing AFM and applicable 

corresponding operational procedures to 

update the FMS limitations. The FAA is 

issuing this AD to address outdated 

MagVar tables inside navigation 

systems, which can affect the 

performance of the navigation systems 

and result in the presentation of 

misleading magnetic heading references 

on the primary flight displays (PFDs) 

and multi-function displays (MFDs), 

positioning the airplane outside of the 

terrain and obstacle protection provided 

by instrument flight procedures and 

flight route designs, and can lead to 

significantly inaccurate heading, course, 

and bearing calculations. See the MCAI 

for additional background information. 

Comments 

The FAA gave the public the 

opportunity to participate in developing 

this final rule. The FAA received no 

comments on the NPRM or on the 

determination of the cost to the public. 

Conclusion 

The FAA reviewed the relevant data 

and determined that air safety and the 

public interest require adopting this 

final rule as proposed, except for minor 

editorial changes. The FAA has 

determined that these minor changes: 

• Are consistent with the intent that 

was proposed in the NPRM for 

addressing the unsafe condition; and 

• Do not add any additional burden 

upon the public than was already 

proposed in the NPRM. 

Related Service Information Under 1 

CFR Part 51 

Bombardier has issued the following 

service information. This service 

information describes procedures for 

revising the existing AFM to update the 

FMS limitations. These documents are 

distinct since they apply to different 

airplane configurations. 

• Flight Management System (FMS) 

limitation in Section 02–04—Systems 

Limitations, of Chapter 02—Limitations, 

of the Bombardier Challenger 300 

Airplane Flight Manual (Imperial 

Version), Publication No. CSP 100–1, 

Revision 58, dated January 15, 2020. 

(For obtaining the FMS limitation for 

Bombardier Challenger 300 Airplane 

Flight Manual (Imperial Version), 

Publication No. CSP 100–1, use 

Document Identification No. CH 300 

AFM–I.) 

• FMS limitation in Section 02–04— 

Systems Limitations, of Chapter 02— 

Limitations, of the Bombardier 

Challenger 300 Airplane Flight Manual 

(Metric Version), Publication No. CSP 

100–1 (Metric), Revision 58, dated 

January 15, 2020. (For obtaining the 

FMS limitation for Bombardier 

Challenger 300 Airplane Flight Manual 

(Metric Version), Publication No. CSP 

100–1 (Metric), use Document 

Identification No. CH 300 AFM–M.) 

This service information is reasonably 

available because the interested parties 

have access to it through their normal 

course of business or by the means 

identified in the ADDRESSES section. 

Costs of Compliance 

The FAA estimates that this AD 

affects 318 airplanes of U.S. registry. 

The FAA estimates the following costs 

to comply with this AD: 

ESTIMATED COSTS FOR REQUIRED ACTIONS

Labor cost Parts cost Cost per 

product 

Cost on U.S. 

operators 

1 work-hour × $85 per hour = $85 .............................................................................................. $0 $85 $27,030 


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Federal Register / Vol. 86, No. 136 / Tuesday, July 20, 2021 / Rules and Regulations 38227 

Authority for This Rulemaking 

Title 49 of the United States Code 

specifies the FAA’s authority to issue 

rules on aviation safety. Subtitle I, 

section 106, describes the authority of 

the FAA Administrator. Subtitle VII: 

Aviation Programs, describes in more 

detail the scope of the Agency’s 

authority. 

The FAA is issuing this rulemaking 

under the authority described in 

Subtitle VII, Part A, Subpart III, Section 

44701: General requirements. Under 

that section, Congress charges the FAA 

with promoting safe flight of civil 

aircraft in air commerce by prescribing 

regulations for practices, methods, and 

procedures the Administrator finds 

necessary for safety in air commerce. 

This regulation is within the scope of 

that authority because it addresses an 

unsafe condition that is likely to exist or 

develop on products identified in this 

rulemaking action. 

Regulatory Findings 

This AD will not have federalism 

implications under Executive Order 

13132. This AD will not have a 

substantial direct effect on the States, on 

the relationship between the national 

government and the States, or on the 

distribution of power and 

responsibilities among the various 

levels of government. 

For the reasons discussed above, I 

certify that this AD: 

(1) Is not a ‘‘significant regulatory 

action’’ under Executive Order 12866, 

(2) Will not affect intrastate aviation 

in Alaska, and 

(3) Will not have a significant 

economic impact, positive or negative, 

on a substantial number of small entities 

under the criteria of the Regulatory 

Flexibility Act. 

List of Subjects in 14 CFR Part 39 

Air transportation, Aircraft, Aviation 

safety, Incorporation by reference, 

Safety. 

Adoption of the Amendment 

Accordingly, under the authority 

delegated to me by the Administrator, 

the FAA amends 14 CFR part 39 as 

follows: 

PART 39—AIRWORTHINESS 

DIRECTIVES 

■ 1. The authority citation for part 39 

continues to read as follows: 

Authority: 49 U.S.C. 106(g), 40113, 44701. 

§ 39.13 [Amended] 

■ 2. The FAA amends § 39.13 by adding 

the following new airworthiness 

directive: 

2021–14–01 Bombardier, Inc.: Amendment 

39–21628; Docket No. FAA–2021–0272; 

Project Identifier MCAI–2020–01485–T. 

(a) Effective Date 

This airworthiness directive (AD) is 

effective August 24, 2021. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to Bombardier, Inc., 

Model BD–100–1A10 airplanes, certificated 

in any category, serial numbers 20003 

through 20407 inclusive, equipped with 

FMC–5000 flight management computers. 

(d) Subject 

Air Transport Association (ATA) of 

America Code 34, Navigation. 

(e) Unsafe Condition 

This AD was prompted by a report that 

certain airplanes have navigation units with 

outdated magnetic variation (MagVar) tables. 

The FAA is issuing this AD to address 

outdated MagVar tables inside navigation 

systems, which can affect the performance of 

the navigation systems and result in the 

presentation of misleading magnetic heading 

references on the primary flight displays 

(PFDs) and multi-function displays (MFDs), 

positioning the airplane outside of the terrain 

and obstacle protection provided by 

instrument flight procedures and flight route 

designs, and can lead to significantly 

inaccurate heading, course, and bearing 

calculations. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Revision of the Airplane Flight Manual 

(AFM) 

Within 60 days after the effective date of 

this AD: Revise the existing AFM and 

applicable corresponding operational 

procedures to incorporate the information 

specified in the Flight Management System 

(FMS) limitation in Section 02–04—Systems 

Limitations, of Chapter 02—Limitations, of 

the applicable AFM, specified in figure 1 to 

paragraph (g) of this AD. 


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38228 Federal Register / Vol. 86, No. 136 / Tuesday, July 20, 2021 / Rules and Regulations 

(h) Other FAA AD Provisions 

The following provisions also apply to this 

AD: 

(1) Alternative Methods of Compliance 

(AMOCs): The Manager, New York ACO 

Branch, FAA, has the authority to approve 

AMOCs for this AD, if requested using the 

procedures found in 14 CFR 39.19. In 

accordance with 14 CFR 39.19, send your 

request to your principal inspector or 

responsible Flight Standards Office, as 

appropriate. If sending information directly 

to the manager of the certification office, 

send it to ATTN: Program Manager, 

Continuing Operational Safety, FAA, New 

York ACO Branch, 1600 Stewart Avenue, 

Suite 410, Westbury, NY 11590; telephone 

516–228–7300; fax 516–794–5531. Before 

using any approved AMOC, notify your 

appropriate principal inspector, or lacking a 

principal inspector, the manager of the 

responsible Flight Standards Office. 

(2) Contacting the Manufacturer: For any 

requirement in this AD to obtain instructions 

from a manufacturer, the instructions must 

be accomplished using a method approved 

by the Manager, New York ACO Branch, 

FAA; or Transport Canada Civil Aviation 

(TCCA); or Bombardier, Inc.’s TCCA Design 

Approval Organization (DAO). If approved by 

the DAO, the approval must include the 

DAO-authorized signature. 

(i) Related Information 

(1) Refer to Mandatory Continuing 

Airworthiness Information (MCAI) TCCA AD 

CF–2020–33, dated September 29, 2020, for 

related information. This MCAI may be 

found in the AD docket on the internet at 

https://www.regulations.gov by searching for 

and locating Docket No. FAA–2021–0272. 

(2) For more information about this AD, 

contact Thomas Niczky, Aerospace Engineer, 

Avionics and Electrical Systems Section, 

FAA, New York ACO Branch, 1600 Stewart 

Avenue, Suite 410, Westbury, NY 11590; 

telephone 516–228–7347; fax 516–794–5531; 

email 9-avs-nyaco-cos@faa.gov. 

(j) Material Incorporated by Reference 

(1) The Director of the Federal Register 

approved the incorporation by reference 

(IBR) of the service information listed in this 

paragraph under 5 U.S.C. 552(a) and 1 CFR 

part 51. 

(2) You must use this service information 

as applicable to do the actions required by 

this AD, unless this AD specifies otherwise. 

(i) Flight Management System (FMS) 

limitation in Section 02–04—Systems 

Limitations, of Chapter 02—Limitations, of 

the Bombardier Challenger 300 Airplane 

Flight Manual (Imperial Version), Publication 

No. CSP 100–1, Revision 58, dated January 

15, 2020. 

(ii) FMS limitation in Section 02–04— 

Systems Limitations, of Chapter 02— 

Limitations, of the Bombardier Challenger 

300 Airplane Flight Manual (Metric Version), 

Publication No. CSP 100–1 (Metric), Revision 

58, dated January 15, 2020. 

(3) For service information identified in 

this AD, contact Bombardier, Inc., 200 CoˆteVertu Road West, Dorval, Que ́bec H4S 2A3, 

Canada; North America toll-free telephone 

1–866–538–1247 or direct-dial telephone 

1–514–855–2999; email ac.yul@

aero.bombardier.com; internet https://

www.bombardier.com. 

Note 1 to paragraph (j)(3): For obtaining 

the FMS limitation for Bombardier 

Challenger 300 Airplane Flight Manual 

(Imperial Version), Publication No. CSP 100– 

1, use Document Identification No. CH 300 

AFM–I. 

Note 2 to paragraph (j)(3): For obtaining 

the FMS limitation for Bombardier 

Challenger 300 Airplane Flight Manual 

(Metric Version), Publication No. CSP 100–1 

(Metric), use Document Identification No. CH 

300 AFM–M. 

(4) You may view this service information 

at the FAA, Airworthiness Products Section, 

Operational Safety Branch, 2200 South 216th 

St., Des Moines, WA. For information on the 

availability of this material at the FAA, call 

206–231–3195. 

(5) You may view this service information 

that is incorporated by reference at the 

National Archives and Records 

Administration (NARA). For information on 

the availability of this material at NARA, 

email fedreg.legal@nara.gov, or go to: https:// 

www.archives.gov/federal-register/cfr/ibrlocations.html. 

Issued on June 21, 2021. 

Lance T. Gant, 

Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2021–15349 Filed 7–19–21; 8:45 am] 

BILLING CODE 4910–13–P 


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Figure 1 to paragraph (g) -AFM Revision 

Bombardier, Inc., AFM- Publication Revision- DatedModel- No.-

BD-100-lAlO Bombardier CSP 100-1 58 January 15, 2020 

airplanes Challenger 300 

Airplane Flight 

Manual 

(Imperial 

Version)1 

BD-100-lAlO Bombardier CSP 100-1 58 January 15, 2020 

airplanes Challenger 300 (Metric) 

Airplane Flight 

Manual (Metric 

Version)2 

1 For obtaining the FMS limitation for Bombardier Challenger 300 Airplane Flight 

Manual (Imperial Version), Publication No. CSP 100-1, use Document Identification 

No. CH 300 AFM-I. 

2 For obtaining the FMS limitation for Bombardier Challenger 300 Airplane Flight 

Manual (Metric Version), Publication No. CSP 100-1 (Metric), use Document 

Identification No. CH 300 AFM-M.